402241340404 has 12 divisors (see below), whose sum is σ = 713565118084. Its totient is φ = 198365592384.

The previous prime is 402241340399. The next prime is 402241340437. The reversal of 402241340404 is 404043142204.

It can be written as a sum of positive squares in 2 ways, for example, as 130646102500 + 271595237904 = 361450^2 + 521148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688769127 + ... + 688769710.

Almost surely, 2^402241340404 is an apocalyptic number.

It is an amenable number.

402241340404 is a deficient number, since it is larger than the sum of its proper divisors (311323777680).

402241340404 is a wasteful number, since it uses less digits than its factorization.

402241340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377538914 (or 1377538912 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 402241340404 its reverse (404043142204), we get a palindrome (806284482608).

The spelling of 402241340404 in words is "four hundred two billion, two hundred forty-one million, three hundred forty thousand, four hundred four".